Page 1 of 280
Introduction 4
Instrument Cluster 10
Warning lights and chimes 10
Gauges 15
Entertainment Systems 18
AM/FM stereo 18
AM/FM stereo with CD 20
AM/FM stereo cassette with CD 23
AM/FM stereo with in-dash six CD 28
Climate Controls 34
Manual heating and air conditioning 34
Automatic temperature control 35
Rear window defroster 37
Lights 38
Headlamps 38
Turn signal control 42
Bulb replacement 44
Driver Controls 50
Windshield wiper/washer control 50
Steering wheel adjustment 51
Power windows 62
Mirrors 63
Speed control 65
Moon roof 69
Message center 74
Locks and Security 84
Keys 84
Locks 84
Anti-theft system 92
Table of Contents
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2008 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Page 15 of 280
Headlamps on warning chime:Sounds when the headlamps or parking
lamps are on, the ignition is off (the key is not in the ignition) and the
driver’s door is opened.
Key-in-ignition warning chime:Sounds when the key is left in the
ignition in the OFF/LOCK or ACCESSORY position and the driver’s door
is opened.
GAUGES
Speedometer:Indicates the
current vehicle speed.
Engine coolant temperature
gauge:Indicates engine coolant
temperature. At normal operating
temperature, the needle will be in
the normal range (between “H” and
“C”).If it enters the red section,
the engine is overheating. Stop
the vehicle as soon as safely
possible, switch off the engine and let the engine cool.
2008 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Instrument Cluster
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Page 39 of 280
5. At the desired autolamp time delay, place the headlamp switch in the
OFF position.
•At this point, the exterior lamps turn off and the time delay is set.
Foglamp control (if equipped)
The foglamps can be turned on
when the headlamp control is pulled
toward you and is in any of the
following positions:
•Parking lamps
•Low beams
•Autolamps (when active)
Foglamps will turn off when the
highbeams are activated.
High beams
Push the lever toward the
instrument panel to activate. Pull
the lever towards you to deactivate.
Flash to pass
Pull toward you slightly to activate
and release to deactivate.
Daytime running lamps (DRL) (if equipped)
Turns the headlamps on with a reduced output. To activate:
•the key must be in the ON position,
•the headlamp control is in the OFF or Parking lamps position.
2008 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
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Lights
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TURN SIGNAL CONTROL
•Push down to activate the left
turn signal.
•Push up to activate the right turn
signal.
The flash rate of the turn signal will speed up considerably if the left or
right turn lamp bulb (front or rear) is burned out.
Cornering lamps
When the turn signal is used and the headlamps are on, the cornering
lamps will light either the right or left side depending on the direction of
the turn.
INTERIOR LAMPS
Map/Courtesy lamps
The courtesy lamps light when:
•any door is opened.
•the instrument panel dimmer
switch is rotated past the detent.
•the UNLOCK control of the
remote entry controls is pressed
and the ignition is OFF.
The reading lamps can be turned on
by pressing the rocker controls next
to each lamp.
If equipped with Remote Keyless Entry, the courtesy lamp will illuminate
whenever any door is opened and will remain on for 25 seconds after the
door is shut or when the ignition is turned to the ON position.
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•They will not reappear until an ignition OFF-ON cycle has been
completed.
This acts as a reminder that these warning conditions still exist within
the vehicle.
Warning display Status
Door Ajar Warning cannot be reset
Coolant over temperature Warning returns after 10 minutes
Powertrain malfunction
Check fuel cap
Check air suspension
Low fuel
Overdrive ON/OFF Warning returns after the ignition key
is turned from OFF to ON.
Trunk ajar
Low tire pressure
Tire pressure monitor fault
Tire pressure sensor fault
Check compass module
Low washer fluid
Change engine oil
DOOR AJAR.Displayed when a door is not completely closed.
POWERTRAIN MALFUNCTION.Displayed when the powertrain is not
operating properly. If the warning stays on or continues to come on,
contact your authorized dealer as soon as possible.
COOLANT OVER TEMPERATURE.Displayed when the engine
coolant is overheating. Stop the vehicle as soon as safely possible, turn
off the engine and let it cool. Check the coolant and coolant level. Refer
toEngine coolantin theMaintenance and Specificationschapter. If
the warning stays on or continues to come on, contact your authorized
dealer as soon as possible.
Never remove the coolant reservoir cap while the engine is
running or hot.
CHECK FUEL CAP.Displayed when the fuel filler cap is not properly
installed. Check the fuel filler cap for proper installation. Refer toFuel
filler capin theMaintenance and Specificationschapter.
2008 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
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Driver Controls
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Page 83 of 280
INTERIOR TRUNK CONTROL
The remote trunk release control is
located on the driver’s door trim
panel and can be operated at any
time.
You can render the switch
inoperable by locking the button
with your master key.
If equipped with a perimeter alarm system, the remote trunk release
control and power door locks will be disabled when the vehicle perimeter
alarm system is armed. This control will not work until the vehicle
perimeter alarm system is disarmed. Refer toPerimeter Alarm System
in theLocks and Securitychapter.
2008 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
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KEYS
The vehicle is equipped with a master key which will access the vehicle’s
doors, trunk, glove box, ignition and remote trunk release.
POWER DOOR LOCKS
Power door trim switch inhibit
This feature disables the power door locks and trunk interior release
switches if all doors are closed and the perimeter alarm becomes armed.
Once the power door trim switches are disabled, they can only become
active when perimeter alarm is disarmed.
Press control to unlock all vehicle
doors.
Press control to lock all vehicle
doors.
Smart locks (if equipped)
With the key in any ignition position, and either the driver’s or
passenger’s door open, the doors cannot be locked using the power door
lock switches.
The vehicle may still be locked with the key in the ignition, and
performing one of the following actions:
•Pressing the manual lock button on the door.
•Operating the remote entry transmitter (if equipped).
•Operating the keyless entry keypad (if equipped).
•Operating the driver’s door with a key.
2008 Grand Marquis(grn)
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INTERIOR LUGGAGE COMPARTMENT RELEASE
Your vehicle is equipped with a mechanical interior luggage compartment
release handle that provides a means of escape for children and adults in
the event they become locked inside the luggage compartment.
Adults are advised to familiarize themselves with the operation and
location of the release handle.
To open the luggage compartment
door (lid) from within the luggage
compartment, pull the illuminated
“T” shaped handle and push up on
the trunk lid. The handle is
composed of a material that will
glow for hours in darkness following
brief exposure to ambient light.
The “T” shaped handle will be
located either on the luggage
compartment door (lid) or inside
the luggage compartment near the
tail lamps.
Keep vehicle doors and
luggage compartment
locked and keep keys and remote
transmitters out of a child’s reach.
Unsupervised children could lock
themselves in the trunk and risk
injury. Children should be taught
not to play in vehicles.
On hot days, the temperature in the trunk or vehicle interior can
rise very quickly. Exposure of people or animals to these high
temperatures for even a short time can cause death or serious
heat-related injuries, including brain damage. Small children are
particularly at risk.
2008 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
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Locks and Security
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